630920352 has 24 divisors (see below), whose sum is σ = 1656166176. Its totient is φ = 210306752.

The previous prime is 630920347. The next prime is 630920363. The reversal of 630920352 is 253029036.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×630920352³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3285948 + ... + 3286139.

It is an arithmetic number, because the mean of its divisors is an integer number (69006924).

Almost surely, 2^630920352 is an apocalyptic number.

It is an amenable number.

630920352 is an abundant number, since it is smaller than the sum of its proper divisors (1025245824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630920352 is a wasteful number, since it uses less digits than its factorization.

630920352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572100 (or 6572092 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 630920352 is about 25118.1279557215. The cubic root of 630920352 is about 857.6791362752.

Adding to 630920352 its reverse (253029036), we get a palindrome (883949388).

The spelling of 630920352 in words is "six hundred thirty million, nine hundred twenty thousand, three hundred fifty-two".